A six-month investigation into a prostitution ring in Irvine led to the arrest of several people and the closure of three businesses.

Back in February, detectives got a tip about suspicious activity and high foot traffic through a business on Technology Drive in Irvine called Dexter Company, which was licensed as a medical supply store.

Investigators uncovered a massage-parlor type setup, where they say 60-year-old Soon Keun Kim served as the "madame."

Authorities said Kim was running three separate prostitution businesses in Irvine, including the Technology Drive storefront. Additional arrests were made at the two other locations, which were on Skypark Circle, also in Irvine.

Kim was booked into the Orange County Jail on pimping and pandering charges and held on $35,000 bail.

Also taken into custody were: Chong Suk Yi, 59, who was arrested for supervising a house of ill repute and was cited and released; Mee Hwa Shing, 52, who was arrested for prostitution and was cited and released; Stephen Warner Marsden, 59, who was arrested for solicitation and was cited and released; In Sook Kim, 47, who was arrested for identity theft and was being held on $20,000 bail; Eun Young Park, 40, who was arrested for giving false identification to a peace officer and was being held with no bail.